package com.njth.servlet.action;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.njth.beans.User;
import com.njth.dao.*;

public class AddUser extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = 2184066410182268302L;

	/**
	 * Constructor of the object.
	 */
	public AddUser() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		this.doPost(request, response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		String userName=request.getParameter("username");
		String password=request.getParameter("userpass1");		
		String email=request.getParameter("email");
		User newUser=new User();
		request.setAttribute("newUser",newUser);

		UserDAO dao=(UserDAO)DaoConfig.getDaoManager().getDao(UserDAO.class);
		if(userName!=null){
			newUser.setUserName(userName);
		}
		if(password!=null)newUser.setUserPass(password);
		
		if(email!=null)newUser.setEmail(email);
		
		User u=dao.getUserByName(userName);
		if(u!=null){
			request.setAttribute("error", "用户名："+userName+"已被注册！");
			request.getRequestDispatcher("/com/njth/jsp/addUser.jsp").forward(request, response);
			return;
		}
		
		dao.insert(newUser);
		
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
